Nut-lock.



. H. 'J. YAGER.

NUT LOCK. APRLICATION FILED JUNE-30. 1915.

Nuns lamina. um mammal. n. c.

' Patented Feb. 8,1916. 1

To all whom may mm:

. Be itlmown that I, H RVEY J YAdER, a

citizen of the Unitecl States, residing at Seattle, in the county ofKing and vState of lVa'shington, have invented certain new and usefulImprovements in Nut-Locks; and I do hereby declare the, following-to bea full,

clear, and exact description of the invention, such as will enableothers' skilled in the art I I This" invention relates to improvements'nutand. locking key arranged on the bolt-f p of the key being thusarranged in staggered same.

nutllocks and especially. with reference to the-provision of alockingkeyffor use in connection with a .nut for ,l'ockingithe latter on a boltafter the nut has been screwed on.- the bolt as hereinaft'erinore fullydescribed z'lnd'claimed In the accompanying drawings-, Figure 1 is ,a'vertical sectional view of .a bolt and a and constructed in accordance,with I'ny'in in vention. 'Fig, 2 is an end elevation-of the same. Fig.3' is atransverse sectional view of the same, Fig. 4 is adetailperspective.-

.view of the locking ,key;

The bolt 1 has the usual threaded Shank.

, a In accordance'with' my invention I provide the nut 2 which'isadapted to be screwed on the bolt with a key groove 3 which is paralslelwith the axis-oi the ,nut, is arranged at oneside of the bo're' of thenut and extends from the inner side of the nu'tl to itslouter a side. Atthe'innerend of the groove 3 is an outwardly extending recess ,4; At theouter end of the key groove 3 the nut is pro-' 'vided with a groove orrecess-5', the bottom I of which is rounded as at 6. Th'ebolt .shank isprovided with one or mor'eflongitudinal channels 7lwhich intersect its treads. The bore of the nut is threadedas' at 8 to match the threadsofthe bolt} Inconnection with.-

the nut I provide a locking key 9 which is .arranged'i nthe groove 3 ofthe nutand-for' slight'longitudinal movement and is made of soft, steel,iron or other metalwhich may be readily bent. I This l'ocking'key isprovided I arm 12 and atits'outer endis a-simi1ar arm 13 which isformed-with a head 1&- that prea I having segment threadsg tojmatchthose of I sents lugs15 on opposite sides. A, V I t g ftheflnut'and bolt, said key having, bendable I 'tially he key is arranged in iSpecification of Letters Patent." Anplication filed me 30,1915.- S erialNo. 37,284. j

to which it appertain's to make and use the the groove} 3 0i the nut,with its inner end 12 bent at;

.it -=1 atentei1 Febis, 191

4 such an angle as to engage thebotitom o f the recess 4"and"hold thethreads of the key in registry with, those of the nut and bolt so} 7that the nut may-be readily. screwed onthe' 'jbolt. Thebeveled edges 11of the key threads facilitate the engagement of the key threads the nut.When'the nut has beenf screwed on with those of the'bolt asthe'key'passes the i channels 7 of the bolt during the turning of of the'hammeror byothersuitable means and the said arm 13.is' bent. outwardly andcaused to fit the bottom of the curved groove '5, of, the .pnuttthetension onthe key serving tozmove the latter longitudinally a nut and'bolt, care having- Janeen: taken t'ostop the-nut at a time when the'k'y isin registry slight distanceuso as to arran e-the threads" J i -h'eyi' t' a1in mentv th h of the "i with one of the lbvolt channels 7. Thethreads relationtox those of the nut and b0 t and the key be ngsecuredin the nut in such position, it will be evident that. the keyeffectua'lly locks the .nt on the bolt vents the samefrom turning.

ving; thus" described my, inv hgi h; I claim:-'; 1

a 1. In'jcombinationwith' a bolthavinga and prelongitudinal channelextending acrossf i'ts, threads,-.a-nut threaded to engage the-bolthaving segment-threads. to match those ofthe nutandbolt,-said-keyhaving' bendable end extensions adapted to beengagedwith the'innerf and outer. sides of the :nut to hold the key ininitial position with its threads and register with those 0f thenutandfbolt Y 5 8f l'regis'tryzwiththe threads of the nut and and tolock the key in 1ocking'position.with

its threads in the channel of the bolt andv t,

' 2 ,In -,cqmbination,withja ta na longitudinal j channel extending"across its threads, a nutzlthreaded-to engage theflbolt and 7 having, alongitudinal groove communi+ cati-ng, 'with its bore, and a lockin'gkey-ex: tending through'said groove, -arrange'd;. fo1. slightlongitudinal movement" therein and;

end extensions adapted to be engaged" withthe inner and onter sides o fthe nut 'tof hoid the key in initial position with its threads innerside bendable arm of the key and. also having a curved groove in itsouter side for engagement by the otherben'dable arm of providingoppositely projecting lugsfor engagement bya halnrner claw or otherimplement.

In testlmony whereof I aiiix my signature 15 inpresenee of twoWitnesses.

Witnesses: I

CRAWFORD E. WHITE, JOHN P. GAILAGHER.

